Sliding Wear Behavior of Severely Deformed 6061 Aluminum Alloy by Accumulative Roll Bonding (ARB) Process

Abstract

Sliding wear behavior of severely deformed 6061 aluminum alloy sheets by accumulative roll bonding (ARB) process subjected to dry sliding wear at different loading and sliding velocities was investigated using a pin on disc wear machine. The sheets were processed up to five ARB cycles in order to induce a high strain (~ 4.0) to the samples. EBSD results showed that after five cycles of ARB, sheets were found to contain ultra-fine grains with high fraction of high angle grain boundaries. Wear was continuously monitored by measuring the weight losses and morphologies of worn surfaces by scanning electron microscope (SEM), and a model for the wear of the ARB-processed samples was proposed.